In 1894, he became the senior member of Philbin, Beekman & Menken.
He married a wealthy New York City socialite; they had one son, Arthur Menken, who became a successful newsreel cameraman for Paramount Pictures and a war correspondent who would later film the Nanking Massacre and the Spanish Civil War).
Solomon Islands | Solomon R. Guggenheim Museum | Solomon | Solomon Burke | King Solomon | Solomon R. Guggenheim Foundation | Solomon Feferman | Solomon Islands campaign | In Search of King Solomon's Mines | Gizo, Solomon Islands | Solomon River | Key of Solomon | Judgment of Solomon | Vila, Solomon Islands | Solomon's Temple | Solomon R. Guggenheim | Solomon Juneau | Solomon Joachim Halberstam | Solomon ibn Gabirol | Robert C. Solomon | Prabhu Solomon | Stacey Solomon | Solomon Schechter High School of New York | Solomon Schechter | Solomon River (Alaska) | Solomon Northup | Solomon Nason | Solomon L. Hoge | Solomon L. | Solomon Joel |
Thompson's interest in national defense began with his work with the National Security League as one of its publicity heads, but he was irritated that the NSL's founder, Solomon Stanwood Menken did not want to expand the NSL’s publicity tactics or criticize Wilson.